Question

( 1+2+3+4+5+6+7.....+108+109)x(2014x3-2014x2-2014)

Answer 1

=(1+2+3+4+5+6+7+.....+108+109)x(2014x(3-2-1))

=(1+2+3+4+5+6+7+.....+108+109)x(2014x0)

=Ax0

=0

Answer 2

   ( 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 ) x ( 2014 x 3  - 2014 x 2 - 2014 )

= ( 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 ) x              0

=                      0

0 nhân với số nào cũng bằng 0

Answer 3

0 nha bạn

Answer 4

(1+2+3+4+5+6+7......+108+109)x(2014x3+2014x2+2014)

=(1+2+3+4+5+6+7....+108+109)x(2014x3+2014x2+2014x1)

=(1+2+3+4+5+6+7.....+108+109)x(2014x(3-2-1)

=(1+2+3+4+5+6+7....+108+109)x2014x0

=(1+2+3+4+5++6+7...+108+109)x0

= 0